testUserCreation{
  final Weld weld=new Weld();
  WeldContainer weldContainer=weld.initialize();
  final UserManager userManager=weldContainer.instance().select(UserManager.class).get();
  userManager.createNewUsers();
  weld.shutdown();
}
testQueries{
  final Weld weld=new Weld();
  WeldContainer weldContainer=weld.initialize();
  final UserManager userManager=weldContainer.instance().select(UserManager.class).get();
  final List<?> users=userManager.getUsersBetween30And40();
  for (  Object o : users) {
    System.err.println(o.toString());
  weld.shutdown();
}
testAvgQuery{
  final Weld weld=new Weld();
  WeldContainer weldContainer=weld.initialize();
  final UserManager userManager=weldContainer.instance().select(UserManager.class).get();
  userManager.displayAvgCreditByGender();
  weld.shutdown();
}
